Crushing and renovating device for used sand for casting
By designing a crushing and refurbishing device for old foundry sand, and utilizing the coordinated movement of the stirring rod and the stirring paddle driven by a motor, the old sand is efficiently crushed, solving the problem of time-consuming and labor-intensive processes in existing technologies and improving the refurbishment efficiency of molding sand.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, the process of crushing and refurbishing old sand is time-consuming, labor-intensive, inefficient, and the tools are inconvenient to use.
A device for crushing and refurbishing old foundry sand was designed, including a base, a bucket, a stirring rod, and a stirring paddle. The stirring rod is rotated by a motor-driven shaft. The stirring rod can be rotated clockwise or counterclockwise by the meshing of a toothed disc and gears. Combined with the synchronous movement of the stirring paddle, the old sand can be crushed efficiently.
It improves the crushing efficiency of old sand, reduces the time and labor intensity of manual operation, and enhances the renovation effect of molding sand.
Smart Images
Figure CN224058642U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a molding sand processing equipment field especially a kind of old sand crushing renovation device for casting. BACKGROUND
[0002] Molding sand is used as material to make casting mold in casting production, and molding sand can be made into casting mold cavity with specific shape and size according to the design requirements of casting. After casting, the casting is cleaned, and the staff needs to break the molding sand on the casting, and then the molding sand is recycled. However, the molding sand at this time is mostly block combination with different sizes, and the staff needs to use shovel and other tools to break and renovate the molding sand, which is time-consuming and laborious.
[0003] It should be noted that the information disclosed in the above BACKGROUND section is only used to enhance the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model discloses an old sand crushing renovation device for casting.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] An old sand crushing renovation device for casting includes a base, and a hopper is arranged on the base. The device also includes a support, which is arranged on the base. A top plate and a positioning plate are arranged on the support. The top plate is arranged at the top of the support, and the positioning plate is arranged below the top plate. A rotating shaft is rotatably connected to the center axis of the top plate. A toothed disc is arranged at the bottom of the top plate. A stirring rod is arranged on the top of the stirring rod. A gear is arranged on the stirring rod. The gear is engaged with the toothed disc. A connecting rod is arranged between the stirring rod and the rotating shaft. The stirring rod passes through the positioning plate and is movably connected to the positioning plate. A stirring paddle is arranged at the bottom of the stirring rod.
[0007] Further, the connecting rod is provided with an annular adapter at both ends. The adapter at one end of the connecting rod is fixed to the rotating shaft, and the adapter at the other end of the connecting rod is sleeved on the rod body of the stirring rod and rotatably connected to the rod body.
[0008] Further, a ball joint is arranged on the rod body of the stirring rod, and the ball joint is rotatably connected to the positioning plate.
[0009] Further, the diameter of the ball joint is greater than the thickness of the positioning plate.
[0010] Further, the stirring paddle includes at least two metal ribs, and the metal ribs are connected end to end to form a hollow structure.
[0011] Further, the metal ribs include a first rib, a second rib and a third rib, the first rib, the second rib and the third rib are integrally formed, the end of the first rib is fixed at the bottom end of the stirring rod, the end of the third rib is fixed on the rod body of the stirring rod, and the second rib is arranged between the first rib and the third rib.
[0012] Further, the axial direction of the first rib is perpendicular to the axial direction of the stirring rod, and the third rib is parallel to the first rib.
[0013] Further, the length of the first rib is smaller than the length of the third rib, so that the second rib is inclined to the stirring rod.
[0014] Further, the transition part between the first rib and the second rib is chamfered, and the transition part between the second rib and the third rib is chamfered.
[0015] Further, the top of the top plate is provided with a motor connected with the rotating shaft.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The old sand is put into the hopper by the staff, the rotating shaft of the equipment is started to rotate, the stirring rod rotates clockwise or counterclockwise along the circumference of the gear plate, and the stirring rod rotates due to the meshing of the gear plate and the gear plate, and the stirring paddle rotates synchronously, that is, the stirring paddle stirs the old sand in a large range in the hopper, and the old sand is broken in a short time, and the efficiency of crushing the old sand is improved.
[0018] 2. The plurality of metal ribs form a hollow structure as the stirring paddle, and the plurality of metal ribs crush the sand synchronously, improve the probability of the sand contacting the metal ribs, and improve the sand crushing effect.
[0019] 3. The length of the first rib is smaller than the length of the third rib, so that the second rib is inclined to the stirring rod, in order to prolong the length of the second rib in the limited space, so that more sand can be contacted, and the sand crushing effect is further improved.
[0020] 4. The transition part between the first rib, the second rib and the third rib is chamfered, in order to reduce the stress concentration caused by the sharp end and improve the service life of the part. DRAWINGS
[0021] Figure 1 It is a structure schematic view of a used sand crushing and renovating device for casting.
[0022] Figure 2 It is a structure schematic view of a used sand crushing and renovating device for casting.
[0023] In the figure: 1, base; 11, barrel; 2, support; 21, top plate; 211, toothed disc; 212, rotating shaft; 213, motor; 22, positioning plate; 3, stirring rod; 31, gear; 32, connecting rod; 321, adapter; 33, ball joint; 34, stirring paddle; 341, metal rib; 3411, first rib; 3412, second rib; 3413, third rib. DETAILED DESCRIPTION
[0024] The specific embodiments of the present application will be described below with reference to the accompanying drawings.
[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the device proposed by the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more clear. It should be noted that the drawings are greatly simplified and all use non-precise proportions, only to facilitate and clarify the purpose of assisting the description of the embodiments of the present application. In order to make the purpose, features and advantages of the present application more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions of the implementation of the present application, so they do not have the technical essence, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0026] Embodiment:
[0027] A used sand crushing and renovating device for casting, as shown in Figure 1 , comprising a base 1, a support 2 and a stirring rod 3, wherein the support 2 is fixed on the base 1, and the stirring rod 3 is movably connected to the support 2. During work, the stirring rod 3 moves to break the old sand.
[0028] As shown in Figure 1 , a barrel 11 is arranged on the base 1, and the barrel 11 is arranged at the center of the base 1. During work, the workers put the recycled old sand into the barrel 11.
[0029] As shown in Figure 1 , the support 2 is arranged on the base 1, and the support 2 is located beside the barrel 11. The support 2 is provided with a top plate 21 and a positioning plate 22, the top plate 21 is arranged at the top of the support 2, and the positioning plate 22 is arranged below the top plate 21 and above the barrel 11.
[0030] As shown in Figure 1 and Figure 2As shown, a rotating shaft 212 is rotatably connected to the top plate 21. The rotating shaft 212 is located on the central axis of the top plate 21, and its tail end extends out of the bottom surface of the top plate 21. A motor 213 is mounted on the top of the top plate 21 and is connected to the rotating shaft 212, providing power for the rotation of the rotating shaft 212. A geared disc 211 is provided at the bottom of the top plate 21, and the external teeth of the geared disc 211 are helical teeth.
[0031] like Figure 1 and Figure 2 As shown, a gear 31 is provided at the top of the stirring rod 3. The gear 31 meshes with the gear disk 211. During operation, the stirring rod 3 can move clockwise or counterclockwise along the circumference of the gear 31.
[0032] like Figure 1 As shown, a connecting rod 32 is provided between the stirring rod 3 and the rotating shaft 212. The connecting rod 32 is located below the gear 31. Both ends of the connecting rod 32 are provided with annular transition portions 321. One end of the connecting rod 32 is fixed to the rotating shaft 212 with an interference fit. The other end of the connecting rod 32 is fitted onto the body of the stirring rod 3, and the two rotate in coordination. During operation, the motor 213 drives the rotating shaft 212 to rotate, which in turn drives the stirring rod 3 to move via the connecting rod 32.
[0033] like Figure 1 As shown, a ball joint 33 is provided on the body of the stirring rod 3. The ball joint 33 is located below the connecting rod 32. The diameter of the ball joint 33 is larger than the thickness of the positioning plate 22. The ball joint 33 is rotatably connected to the center of the positioning plate 22, so that the stirring rod 3 is arranged at an angle. During operation, the stirring rod 3 rotates around the ball joint 33 as the axis.
[0034] like Figure 1As shown, the bottom of the stirring rod 3 is provided with a stirring paddle 34 located in the bucket 11. The stirring paddle 34 comprises at least two metal ribs 341 connected end to end to form a hollow structure. In operation, the stirring paddle 34 stirs in the bucket 11, and the metal ribs 341 are in contact with the old sand. The metal ribs 341 comprise a first rib 3411, a second rib 3412 and a third rib 3413 which are integrally formed. The end of the first rib 3411 is fixed to the bottom end of the stirring rod 3, and the axial direction of the first rib 3411 is perpendicular to the axial direction of the stirring rod 3. The end of the third rib 3413 is fixed to the rod body of the stirring rod 3, and the third rib 3413 is parallel to the first rib 3411. The length of the first rib 3411 is less than the length of the third rib 3413. The second rib 3412 is arranged between the first rib 3411 and the third rib 3413. Since the length of the first rib 3411 is less than the length of the third rib 3413, the second rib 3412 is arranged obliquely. The transition between the first rib 3411 and the second rib 3412 is rounded, and the transition between the second rib 3412 and the third rib 3413 is rounded, so as to avoid structural damage caused by excessive stress concentration at the transition. In the limited space, the length of the second rib 3412 is increased as much as possible to increase the contact opportunity with the old sand and improve the crushing effect.
[0035] Specific working process:
[0036] The worker puts the old sand into the bucket 11, and then the motor 213 starts to rotate the rotating shaft 212 to drive the stirring rod 3 to rotate around the spherical joint 33 and along the circumferential direction of the gear plate 211. Since the gear 31 and the gear plate 211 are engaged, the stirring rod 3 rotates by itself during the rotation of the stirring rod 3, and the stirring paddle 34 moves synchronously to fully and quickly crush the old sand to complete the renovation. Finally, the worker recycles the crushed sand and continues the subsequent regeneration process.
[0037] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.
[0038] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A used sand crushing and renovating device for casting, characterized in that: it comprises a base, a hopper is arranged on the base; a support is arranged on the base, a top plate and a positioning plate are arranged on the support, the top plate is arranged at the top of the support, the positioning plate is arranged below the top plate, a rotating shaft is rotatably connected to the central axis of the top plate, and a toothed disc is arranged at the bottom of the top plate; a stirring rod is arranged, a gear is arranged at the top of the stirring rod, the gear is engaged with the toothed disc, a connecting rod is arranged between the stirring rod and the rotating shaft, the stirring rod passes through the positioning plate and is movably connected to the positioning plate, and a stirring paddle is arranged at the bottom of the stirring rod; the connecting rod is provided with an annular adapter at both ends, the adapter at one end of the connecting rod is fixed to the rotating shaft, and the adapter at the other end of the connecting rod is sleeved on the rod body of the stirring rod and is rotatably connected to the rod body; a ball joint is arranged on the rod body of the stirring rod and is rotatably connected in the positioning plate; the diameter of the ball joint is greater than the thickness of the positioning plate; the stirring paddle comprises at least two metal ribs, the metal ribs are connected end to end to form a hollow structure; the metal ribs comprise a first rib, a second rib and a third rib, the first rib, the second rib and the third rib are integrally formed, the end of the first rib is fixed to the bottom end of the stirring rod, the end of the third rib is fixed to the rod body of the stirring rod, and the second rib is arranged between the first rib and the third rib; the axial direction of the first rib is perpendicular to the axial direction of the stirring rod, and the third rib is parallel to the first rib; the length of the first rib is less than the length of the third rib, so that the second rib is inclined to the stirring rod; the transition part between the first rib and the second rib is chamfered, and the transition part between the second rib and the third rib is chamfered; and a motor is mounted at the top of the top plate and is connected to the rotating shaft. 2. A used sand breaking and reclaiming device for foundry use according to claim 1, characterized in that: 3. A used sand breaking and reclaiming device for foundry use according to claim 1, characterized in that: 4. A used sand breaking and reclaiming device for foundry use according to claim 3, characterized in that: 5. A used sand breaking and reclaiming device for foundry use according to claim 1, characterized in that: 6. A used sand breaking and reclaiming device for foundry use according to claim 5, characterized in that: 7. A used sand breaking and reclaiming device for foundry use according to claim 6, characterized in that: 8. A used sand breaking and reclaiming device for foundry use according to claim 7, characterized in that: 9. A used foundry sand breaking and rejuvenating device according to claim 8, characterized in that: 10. A used sand crushing and reclaiming device for foundries according to claim 1, characterized in that: